Explosives hazard classification

Magison, E. C. 1987. Hazardous Material Classification m the United States History, Problems, and Needs. Proe. Inti. Symposium on the Explosion Hazard Classification of. Vapors, Gases and Dusts. National Materials Advisory Board, Washington, DC. 

Explosive Hazard Classification of Drowning Tank Material from TNT Manufacturing Process , PATR 4613 (1974) 19) Anon, The... 

J. Swatosh, Jr., and H. Napadensky, Explosive Hazard Classification of Ml Propelling Charge in its Container, (Vol I II), IITRI TR J6265-27 September 1972... 

Quantitative Fire and Explosion Index (FExplosion Index Hazard Classification Guide, 1994 Lees, 1980, pp. 149-160). The F EI is used to rate the potential of hazard from fires and explosions. Its purpose is to quantify damage from an incident. It identifies equipment that could contribute to an incident and ways to mitigate possible incidents. It is a way to communicate to management the quantitative hazard potential. 

Except for areas with fire or explosion hazards (hazardous areas), motor enclosures are designed to provide protection to the internal working parts. The development or improved insiilating materials and finishes has affec ted the required degree of protection and consequently the design and classification of enclosures. Examples of several types of enclosures are shown in Fig. 29-4. 

Dow (Dow Chemical Company). 1987. Lire Explosion Index—Hazard Classification Guide, 6th ed.. American Institute of Chemical Engineers, New York. 

Davison, G., and Hewitt, C.N. (ed.) (1997) Air Pollution in the United Kingdom, Royal Society of Chemistry, London. Dow Chemical Company (1993) Dow s Fire and Explosion Index Hazard Classification Guide American Institute of Chemical Engineers. 

Dow Chemical Company (1994b). Dow s Fire and Explosion Index Hazard Classification Guide. 7th Edition. New York American Institute of Chemical Engineers. 

Originally the classification of materials was derived from tests of proprietary explosion-proof (flameproof) enclosures. There were no published criteria. Equipment was approved relative to the lowest ignition temperature of any material in the group (Magison 1987). In about 1965 the U.S. Coast Guard asked the National Academy of Sciences (NAS) to form a panel to classify 200 materials of commerce. The Electrical Hazards Panel of the Committee on Hazardous Materials was formed by the NAS. The Panel studied many ways to estimate the hazard classification of materials. The Panel finally reported to die U.S. Coast Guard in 1970 that no workable, predicdve scheme could be defined, and it then proceeded to assign tentative classifications to the 200 materials. 

Eire and Explosion, Dow s Safety and Loss Prevention Guide Hazard. Classification and Protection, Amer. Inst. Chem. Engr., 1973. 

Energy Efficient (EE) Motor Designs, 628 NEMA Design Classifications, 630 Classification According to Size, 630 Hazard Classifications Fire and Explosion, 631 Electrical Classification for Safety in Plant Layout, 647 Motor Enclosures, 649 ... 

A.H. Lasseigne, "Hazard Classification of Explosives for Transportation. Evaluation of... 

Explosives, See also Explosive chemicals Transportation carriage, 447, 460, 594 compatibility groups, 456 hazard classification, 447, 455 Exposure limits. See Hygiene standards Eye protection, 435... 

Process plants are categorized into different hazard classifications, according to the potential explosion energy available from vessel rupture, condensed-phase explosion, confined vapor (building) explosion, or VCE. 

Refer to Fire Explosion Index Hazard Classification Guide for details. 

More detailed check lists are given by Carson and Mumford (1988) and Wells (1980). Balemans (1974) gives a comprehensive list of guidelines for the safe design of chemical plant, drawn up in the form of a check list. A loss prevention check list is included in the Dow Fire and Explosion Index Hazard Classification Guide, Dow (1987). 

Various secondary sources of safety data are now listing this as an explosive. I can find no primaiy source for this classification, which seems very improbable. Simple minded use of many computational hazard prediction procedures would show thermodynamically that this compound, like most lower amines, could hypothetically convert to alkane, ammonia and nitrogen with sufficient energy (about 3 kJ/g) to count as an explosion hazard. This reaction is not known to happen. (Simple minded thermodynamicists would rate this book, or computer, and its reader as a severe hazard in an air environment.) Like other bases, iminobispropylamine certainly sensitises many nitro-explosives to detonation. It is used experimentally to study the effect, which may have found technical exploitation and, garbled, could have led to description of the amine as itself an explosive. 

Table 7. Classification of Factors Involved in Dust Explosion Hazards for the Storage of Flammable Powders (Glor, 1988)...

Figure 10-3 Form used in the Dow Fire and Explosion Index. The figures and tables referenced in the form are provided in the index booklet. Source Dow s Fire and Explosion Index Hazard Classification Guide, 7th ed., (1994). Reproduced by permission of the American Institute of Chemical Engineers.

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